Answer:
True, false, true, true.
Step-by-step explanation:
The roots zeros of a quadratic function are the same as the factors of the quadratic function. This is true because your roots are your factors—>(x-3) is a factor, x=3 is the root.
The roots zeros are the spots where the quadratic function intersects with the y-axis. No! Those are called y-intercepts!
The roots zeros are the spots where the quadratic function intersects with the x-axis. True. X-intercepts are your solutions. (x-3) graphed would the (3,0). That’s a solution.
There are not always two roots/zeros of a quadratic function, True. No solution would be when your quadratic doesn’t intersect the x-axis. One solution would be when your vertex would be on the x-axis. Two solutions is when your quadratic intersects the x-axis twice. Can there be infinite solutions? No. It’s either 0, 1, or 2 solutions.
It’s basically asking you to put it into the graph. Least to greatest.
I the average score is 750 and standard deviation ( sigma ) is 50 points, then score 700 - 800 is between (750 - 1 sigma) and (750 + 1 sigma).
That is 34.1 % + 34.1 % = 68.2 % of the whole population.
2,000 · 0.682 = 1.364
We expect 1,364 students to score between 700 and 800 points.
I will show you a way to do 1 and then you pratice with the rest and I'll check it and help you .
This is what I would do to make it easier
1. 7:15 to 11:16 then 12:05 to 6:10
- hours are on the left side-
1 - 7:15 to 8:15
2- 8:15 to 9: 15
3 - 9:15 to 10:15
4 - 10:15 to 11:15
16 - 15 = 1
4 hours and 1 minute
worked :12:05 - 6:10
1- 12:05 to 1:05
2- 1:05 to 2:05
3- 2:05 to 3:05
4 - 3:05 to 4:05
5- 4:05 to 5:05
6- 5:05 to 6:05
10 - 5 = 5
6 hours and 5 mins
4 + 6 = 10 hours
1 + 5 = 6 mins
10 hours and 6 minutes
Answer: the account earns interest of $40.16
Step-by-step explanation:
We would apply the formula for determining compound interest which is expressed as
A = P(1+r/n)^nt
Where
A = total amount in the account at the end of t years
r represents the interest rate.
n represents the periodic interval at which it was compounded.
P represents the principal or initial amount deposited
From the information given,
P = 875.83
r = 9% = 9/100 = 0.09
n = 12 because it was compounded 12 times in a year.
t = 6 months = 6/12 = 0.5 year
Therefore,.
A = 875.83(1+0.09/12)^0.5 × 12
A = 875.83(1+0.0075)^6
A = 875.83(1.0075)^6
A = 915.99
The interest that she earns is
915.99 - 875.83 = $40.16
